filp /
whoops
Complex classes like PrettyPageHandler often do a lot of different things. To break such a class down, we need to identify a cohesive component within that class. A common approach to find such a component is to look for fields/methods that share the same prefixes, or suffixes. You can also have a look at the cohesion graph to spot any un-connected, or weakly-connected components.
Once you have determined the fields that belong together, you can apply the Extract Class refactoring. If the component makes sense as a sub-class, Extract Subclass is also a candidate, and is often faster.
While breaking up the class, it is a good idea to analyze how other classes use PrettyPageHandler, and based on these observations, apply Extract Interface, too.
| 1 | <?php |
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| 18 | class PrettyPageHandler extends Handler |
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| 19 | { |
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| 20 | /** |
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| 21 | * Search paths to be scanned for resources, in the reverse |
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| 22 | * order they're declared. |
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| 23 | * |
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| 24 | * @var array |
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| 25 | */ |
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| 26 | private $searchPaths = []; |
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| 27 | |||
| 28 | /** |
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| 29 | * Fast lookup cache for known resource locations. |
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| 30 | * |
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| 31 | * @var array |
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| 32 | */ |
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| 33 | private $resourceCache = []; |
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| 34 | |||
| 35 | /** |
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| 36 | * The name of the custom css file. |
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| 37 | * |
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| 38 | * @var string |
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| 39 | */ |
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| 40 | private $customCss = null; |
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| 41 | |||
| 42 | /** |
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| 43 | * @var array[] |
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| 44 | */ |
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| 45 | private $extraTables = []; |
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| 46 | |||
| 47 | /** |
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| 48 | * @var bool |
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| 49 | */ |
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| 50 | private $handleUnconditionally = false; |
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| 51 | |||
| 52 | /** |
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| 53 | * @var string |
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| 54 | */ |
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| 55 | private $pageTitle = "Whoops! There was an error."; |
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| 56 | |||
| 57 | /** |
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| 58 | * @var array[] |
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| 59 | */ |
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| 60 | private $applicationPaths; |
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| 61 | |||
| 62 | /** |
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| 63 | * @var array[] |
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| 64 | */ |
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| 65 | private $blacklist = [ |
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| 66 | '_GET' => [], |
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| 67 | '_POST' => [], |
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| 68 | '_FILES' => [], |
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| 69 | '_COOKIE' => [], |
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| 70 | '_SESSION' => [], |
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| 71 | '_SERVER' => [], |
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| 72 | '_ENV' => [], |
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| 73 | ]; |
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| 74 | |||
| 75 | /** |
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| 76 | * A string identifier for a known IDE/text editor, or a closure |
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| 77 | * that resolves a string that can be used to open a given file |
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| 78 | * in an editor. If the string contains the special substrings |
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| 79 | * %file or %line, they will be replaced with the correct data. |
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| 80 | * |
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| 81 | * @example |
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| 82 | * "txmt://open?url=%file&line=%line" |
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| 83 | * @var mixed $editor |
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| 84 | */ |
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| 85 | protected $editor; |
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| 86 | |||
| 87 | /** |
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| 88 | * A list of known editor strings |
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| 89 | * @var array |
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| 90 | */ |
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| 91 | protected $editors = [ |
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| 92 | "sublime" => "subl://open?url=file://%file&line=%line", |
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| 93 | "textmate" => "txmt://open?url=file://%file&line=%line", |
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| 94 | "emacs" => "emacs://open?url=file://%file&line=%line", |
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| 95 | "macvim" => "mvim://open/?url=file://%file&line=%line", |
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| 96 | "phpstorm" => "phpstorm://open?file=%file&line=%line", |
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| 97 | "idea" => "idea://open?file=%file&line=%line", |
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| 98 | "vscode" => "vscode://file/%file:%line", |
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| 99 | ]; |
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| 100 | |||
| 101 | /** |
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| 102 | * @var TemplateHelper |
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| 103 | */ |
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| 104 | private $templateHelper; |
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| 105 | |||
| 106 | /** |
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| 107 | * Constructor. |
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| 108 | */ |
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| 109 | 1 | public function __construct() |
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| 145 | |||
| 146 | /** |
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| 147 | * @return int|null |
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| 148 | */ |
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| 149 | 1 | public function handle() |
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| 249 | |||
| 250 | /** |
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| 251 | * Get the stack trace frames of the exception that is currently being handled. |
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| 252 | * |
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| 253 | * @return \Whoops\Exception\FrameCollection; |
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| 254 | */ |
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| 255 | protected function getExceptionFrames() |
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| 272 | |||
| 273 | /** |
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| 274 | * Get the code of the exception that is currently being handled. |
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| 275 | * |
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| 276 | * @return string |
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| 277 | */ |
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| 278 | protected function getExceptionCode() |
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| 290 | |||
| 291 | /** |
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| 292 | * Get exception being handled as plain text. |
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| 293 | * |
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| 294 | * @return string |
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| 295 | */ |
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| 296 | protected function getExceptionPlainText() |
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| 304 | |||
| 305 | /** |
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| 306 | * @return string |
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| 307 | */ |
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| 308 | public function contentType() |
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| 312 | |||
| 313 | /** |
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| 314 | * Adds an entry to the list of tables displayed in the template. |
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| 315 | * The expected data is a simple associative array. Any nested arrays |
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| 316 | * will be flattened with print_r |
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| 317 | * @param string $label |
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| 318 | * @param array $data |
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| 319 | */ |
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| 320 | 1 | public function addDataTable($label, array $data) |
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| 324 | |||
| 325 | /** |
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| 326 | * Lazily adds an entry to the list of tables displayed in the table. |
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| 327 | * The supplied callback argument will be called when the error is rendered, |
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| 328 | * it should produce a simple associative array. Any nested arrays will |
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| 329 | * be flattened with print_r. |
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| 330 | * |
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| 331 | * @throws InvalidArgumentException If $callback is not callable |
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| 332 | * @param string $label |
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| 333 | * @param callable $callback Callable returning an associative array |
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| 334 | */ |
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| 335 | 1 | public function addDataTableCallback($label, /* callable */ $callback) |
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| 353 | |||
| 354 | /** |
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| 355 | * Returns all the extra data tables registered with this handler. |
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| 356 | * Optionally accepts a 'label' parameter, to only return the data |
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| 357 | * table under that label. |
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| 358 | * @param string|null $label |
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| 359 | * @return array[]|callable |
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| 360 | */ |
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| 361 | 2 | public function getDataTables($label = null) |
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| 370 | |||
| 371 | /** |
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| 372 | * Allows to disable all attempts to dynamically decide whether to |
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| 373 | * handle or return prematurely. |
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| 374 | * Set this to ensure that the handler will perform no matter what. |
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| 375 | * @param bool|null $value |
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| 376 | * @return bool|null |
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| 377 | */ |
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| 378 | 1 | public function handleUnconditionally($value = null) |
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| 386 | |||
| 387 | /** |
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| 388 | * Adds an editor resolver, identified by a string |
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| 389 | * name, and that may be a string path, or a callable |
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| 390 | * resolver. If the callable returns a string, it will |
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| 391 | * be set as the file reference's href attribute. |
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| 392 | * |
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| 393 | * @example |
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| 394 | * $run->addEditor('macvim', "mvim://open?url=file://%file&line=%line") |
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| 395 | * @example |
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| 396 | * $run->addEditor('remove-it', function($file, $line) { |
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| 397 | * unlink($file); |
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| 398 | * return "http://stackoverflow.com"; |
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| 399 | * }); |
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| 400 | * @param string $identifier |
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| 401 | * @param string $resolver |
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| 402 | */ |
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| 403 | 1 | public function addEditor($identifier, $resolver) |
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| 407 | |||
| 408 | /** |
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| 409 | * Set the editor to use to open referenced files, by a string |
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| 410 | * identifier, or a callable that will be executed for every |
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| 411 | * file reference, with a $file and $line argument, and should |
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| 412 | * return a string. |
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| 413 | * |
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| 414 | * @example |
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| 415 | * $run->setEditor(function($file, $line) { return "file:///{$file}"; }); |
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| 416 | * @example |
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| 417 | * $run->setEditor('sublime'); |
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| 418 | * |
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| 419 | * @throws InvalidArgumentException If invalid argument identifier provided |
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| 420 | * @param string|callable $editor |
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| 421 | */ |
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| 422 | 4 | public function setEditor($editor) |
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| 433 | |||
| 434 | /** |
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| 435 | * Given a string file path, and an integer file line, |
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| 436 | * executes the editor resolver and returns, if available, |
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| 437 | * a string that may be used as the href property for that |
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| 438 | * file reference. |
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| 439 | * |
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| 440 | * @throws InvalidArgumentException If editor resolver does not return a string |
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| 441 | * @param string $filePath |
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| 442 | * @param int $line |
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| 443 | * @return string|bool |
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| 444 | */ |
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| 445 | 4 | public function getEditorHref($filePath, $line) |
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| 466 | |||
| 467 | /** |
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| 468 | * Given a boolean if the editor link should |
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| 469 | * act as an Ajax request. The editor must be a |
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| 470 | * valid callable function/closure |
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| 471 | * |
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| 472 | * @throws UnexpectedValueException If editor resolver does not return a boolean |
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| 473 | * @param string $filePath |
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| 474 | * @param int $line |
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| 475 | * @return bool |
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| 476 | */ |
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| 477 | 1 | public function getEditorAjax($filePath, $line) |
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| 489 | |||
| 490 | /** |
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| 491 | * Given a boolean if the editor link should |
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| 492 | * act as an Ajax request. The editor must be a |
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| 493 | * valid callable function/closure |
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| 494 | * |
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| 495 | * @param string $filePath |
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| 496 | * @param int $line |
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| 497 | * @return array |
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| 498 | */ |
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| 499 | 1 | protected function getEditor($filePath, $line) |
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| 534 | |||
| 535 | /** |
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| 536 | * @param string $title |
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| 537 | * @return void |
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| 538 | */ |
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| 539 | 1 | public function setPageTitle($title) |
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| 543 | |||
| 544 | /** |
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| 545 | * @return string |
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| 546 | */ |
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| 547 | 1 | public function getPageTitle() |
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| 551 | |||
| 552 | /** |
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| 553 | * Adds a path to the list of paths to be searched for |
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| 554 | * resources. |
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| 555 | * |
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| 556 | * @throws InvalidArgumentException If $path is not a valid directory |
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| 557 | * |
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| 558 | * @param string $path |
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| 559 | * @return void |
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| 560 | */ |
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| 561 | 2 | public function addResourcePath($path) |
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| 571 | |||
| 572 | /** |
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| 573 | * Adds a custom css file to be loaded. |
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| 574 | * |
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| 575 | * @param string $name |
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| 576 | * @return void |
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| 577 | */ |
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| 578 | public function addCustomCss($name) |
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| 582 | |||
| 583 | /** |
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| 584 | * @return array |
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| 585 | */ |
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| 586 | 1 | public function getResourcePaths() |
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| 590 | |||
| 591 | /** |
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| 592 | * Finds a resource, by its relative path, in all available search paths. |
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| 593 | * The search is performed starting at the last search path, and all the |
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| 594 | * way back to the first, enabling a cascading-type system of overrides |
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| 595 | * for all resources. |
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| 596 | * |
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| 597 | * @throws RuntimeException If resource cannot be found in any of the available paths |
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| 598 | * |
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| 599 | * @param string $resource |
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| 600 | * @return string |
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| 601 | */ |
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| 602 | protected function getResource($resource) |
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| 628 | |||
| 629 | /** |
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| 630 | * @deprecated |
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| 631 | * |
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| 632 | * @return string |
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| 633 | */ |
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| 634 | public function getResourcesPath() |
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| 641 | |||
| 642 | /** |
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| 643 | * @deprecated |
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| 644 | * |
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| 645 | * @param string $resourcesPath |
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| 646 | * @return void |
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| 647 | */ |
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| 648 | public function setResourcesPath($resourcesPath) |
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| 652 | |||
| 653 | /** |
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| 654 | * Return the application paths. |
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| 655 | * |
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| 656 | * @return array |
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| 657 | */ |
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| 658 | public function getApplicationPaths() |
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| 662 | |||
| 663 | /** |
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| 664 | * Set the application paths. |
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| 665 | * |
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| 666 | * @param array $applicationPaths |
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| 667 | */ |
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| 668 | public function setApplicationPaths($applicationPaths) |
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| 672 | |||
| 673 | /** |
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| 674 | * Set the application root path. |
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| 675 | * |
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| 676 | * @param string $applicationRootPath |
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| 677 | */ |
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| 678 | public function setApplicationRootPath($applicationRootPath) |
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| 682 | |||
| 683 | /** |
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| 684 | * blacklist a sensitive value within one of the superglobal arrays. |
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| 685 | * |
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| 686 | * @param $superGlobalName string the name of the superglobal array, e.g. '_GET' |
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| 687 | * @param $key string the key within the superglobal |
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| 688 | */ |
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| 689 | 1 | public function blacklist($superGlobalName, $key) { |
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| 692 | |||
| 693 | /** |
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| 694 | * Checks all values within the given superGlobal array. |
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| 695 | * Blacklisted values will be replaced by a equal length string cointaining only '*' characters. |
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| 696 | * |
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| 697 | * We intentionally dont rely on $GLOBALS as it depends on 'auto_globals_jit' php.ini setting. |
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| 698 | * |
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| 699 | * @param $superGlobal array One of the superglobal arrays |
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| 700 | * @param $superGlobalName string the name of the superglobal array, e.g. '_GET' |
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| 701 | * @return array $values without sensitive data |
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| 702 | */ |
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| 703 | private function masked(array $superGlobal, $superGlobalName) { |
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| 714 | } |
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| 715 |
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This check looks from parameters that have been defined for a function or method, but which are not used in the method body.